Russia wants to rebuild troop strength with recently retired soldiers, UK MoD says.

After heavy losses, Russia is looking at ways to bolster its troop numbers and the Ukrainian President is calling for a ban on Russian oil. Billions of dollars are spent each week on energy imports from Russia.

The U.K. Prime Minister Boris Johnson met with Zelenskyy in Kyiv on Saturday and pledged to increase weapons support and funding.

Heavy shelling continues in eastern Ukraine as the region prepares for a Russian bombardment. People in the east are being told to flee.

The U.K.'s Ministry of Defence said on Sunday that Russia's military wants to increase its troop strength with soldiers who were discharged in the last decade.

In response to mounting losses, the Russian armed forces seek to bolster troop numbers with personnel discharged from military service since 2012, according to the bulletin.

Efforts to generate more fighting power also include trying to recruit from the unrecognized Transnistria region.

NBC couldn't verify the report immediately.

There is a person namedNatasha Turak.

Ukraine does not have time to wait and should immediately ban Russian oil, according to the president.

Volodymyr Zelenskyy said that action must be taken immediately. The oil embargo should be the first step.

He said it must be done at the level of all democracies. It will be an argument for them to stop pointless violence.

Ukrainian President Volodymyr Zelenskyy addresses the nation on April 9, 2022.

Anadolu Agency has pictures of the Ukrainian Presidency.

Zelenskyy has been pressing world leaders to impose a full embargo on Russian energy.

He said that oil is one of the two sources of Russian self-confidence. It's inevitable.

The Ukrainian leader said that they didn't have time to wait. Freedom doesn't have time to wait.

The person is Joanna Tan.

The President of Ukraine, Volodymyr Zelenskyy, and the British Prime Minister, Boris Johnson, walk at the Independence Square after a meeting.

The Ukrainian Presidential Press Service.

After British Prime Minister Boris Johnson pledged more military and financial aid for the country, Ukrainian President Volodymyr Zelenskyy called on Western nations to increase their support.

Britain increased its support for the country after the two leaders met in Kyiv.

Zelenskyy said it was time to impose a full embargo on Russian energy to increase the supply of weapons to us.

Jessica Bursztynsky.